Extension V.2 continued...
Originally the layout was built to be transported in a small car, however, it doesn't fit!
Therefore I have had to use my dad's van which has ample room in both width, length and height. If I was to start this again (which I won't ;) ) I would double-check the room available in the car BEFORE building the layout.
Speaking about designing it for transport, here is a possible way of transporting the layout using castors:
Now I just need to convince myself and my dad that building an extension is a good idea...!